Management device, management method, and program

Abstract

A management device manages transfer of electric power between an electric power system and a secondary battery that is mounted in a vehicle and stores electric power for travel. The management device includes an acquisition unit configured to acquire remaining performance of the secondary battery and information indicating a use period of the secondary battery, and a control unit configured to acquire two or more threshold values corresponding to period information based on a use period of the secondary battery from reference information in which two or more threshold values are associated with the period information based on the use period of the secondary battery, compare remaining performance of the secondary battery with each of the two or more acquired threshold values, and control transfer of electric power between the electric power system and the secondary battery on the basis of a result of the comparison.

What is claimed is: 
     
       1. A management device which manages transfer of electric power between an electric power system and a secondary battery that is mounted in a vehicle and stores electric power for travel, comprising:
 an acquisition unit configured to acquire remaining performance of the secondary battery and information indicating a use period of the secondary battery; and 
 a control unit configured to acquire two or more threshold values corresponding to period information based on a use period of the secondary battery from reference information in which two or more threshold values are associated with the period information based on the use period of the secondary battery, compare remaining performance of the secondary battery with each of the two or more acquired threshold values, and control transfer of electric power between the electric power system and the secondary battery on the basis of a result of the comparison. 
 
     
     
       2. The management device according to  claim 1 ,
 wherein the two or more threshold values include a first threshold value, and a second threshold value indicating that the remaining performance is higher than the first threshold value, and 
 the control unit restricts the transfer of electric power between the electric power system and the secondary battery when the remaining performance of the secondary battery is less than the first threshold value. 
 
     
     
       3. The management device according to  claim 1 ,
 wherein the two or more threshold values include a first threshold value, and a second threshold value indicating that the remaining performance is higher than the first threshold value, and 
 the control unit controls, when the remaining performance of the secondary battery is equal to or more than the first threshold value and less than the second threshold value, a state of charge of the secondary battery in a narrower range than when the remaining performance is equal to or more than the second threshold value. 
 
     
     
       4. The management device according to  claim 1 ,
 wherein the two or more threshold values include a first threshold value, and a second threshold value indicating that the remaining performance is higher than the first threshold value, 
 the control unit performs control such that frequency regulation control for maintaining a constant frequency of the electric power system is performed on the vehicle near a lower limit state of charge when the remaining performance of the secondary battery is equal to or more than the first threshold value and less than the second threshold value, the lower limit state of charge being a state of charge at which the secondary battery can output an amount of electric power consumed by traveling a distance preset by a driver for the next time the vehicle travels. 
 
     
     
       5. The management device according to  claim 1 ,
 wherein the two or more threshold values include a first threshold value, and a second threshold value indicating that the remaining performance is higher than the first threshold value, 
 the control unit performs control such that frequency regulation control for maintaining a constant frequency of the electric power system is performed on the vehicle between a frequency control state of charge having a state of charge higher than a lower limit state of charge and the lower limit state of charge when the remaining performance of the secondary battery is equal to or more than the second threshold value, the lower limit state of charge being a state of charge at which the secondary battery can output an amount of electric power consumed by traveling a distance preset by a driver for the next time the vehicle travels. 
 
     
     
       6. A management method comprising:
 by a management device that manages transfer of electric power between an electric power system and a secondary battery that is mounted in a vehicle and stores electric power for travel, 
 acquiring remaining performance of the secondary battery and information indicating a use period of the secondary battery; 
 acquiring two or more threshold values corresponding to period information based on the use period of the secondary battery from reference information in which two or more threshold values are associated with the period information based on the use period of the secondary battery; 
 comparing the remaining performance of the secondary battery with each of the two or more acquired threshold values; and 
 controlling the transfer of electric power between the electric power system and the secondary battery on the basis of a result of the comparison. 
 
     
     
       7. A computer-readable non-transitory storage medium which stores a program causing a computer of a management device that manages transfer of electric power between an electric power system and a secondary battery that is mounted in a vehicle and stores electric power for travel to
 acquire remaining performance of the secondary battery and information indicating a use period of the secondary battery; 
 acquire two or more threshold values corresponding to period information based on the use period of the secondary battery from reference information in which two or more threshold values are associated with the period information based on the use period of the secondary battery, 
 compare the remaining performance of the secondary battery with each of the two or more acquired threshold values; and 
 control the transfer of electric power between the electric power system and the secondary battery on the basis of a result of the comparison.